java - JDO - Determine entities affected by transaction commit -

-

मैं एक जावा वेब प्रोजेक्ट को एक JDO आधारित दृढ़ता से एक साथ रखने के शुरुआती चरणों में हूं

यदि मैं अपने HTTPServlet और commit या रोलबैक में एक लेनदेन शुरू करता हूँ आउटपुट स्ट्रीम की प्रतिक्रिया लिखने से पहले सर्वोलेट, क्या वस्तुओं की सूची प्राप्त करने का कोई तरीका है (या सिर्फ आईडी) जो कि कमिट द्वारा बदला गया था? यदि हां, तो प्रदर्शन क्या होगा?

अपडेट:

मैंने अभी तक ऐसा नहीं किया है, लेकिन ऐसा लगता है कि एक InstanceLifecycleListener को जोड़ने से स्थिरता प्रबंधक चाल करता है।

एक इंस्टेंस लाइफसाइकिल लिस्टनर जोड़ना से स्थिरता प्रबंधक अच्छी तरह से अब तक काम कर रहा है। एकमात्र पकड़ा यह नहीं था कि क्लासेस [] पैरामीटर को addInstanceLifecycleListener में छोड़ दें। इसके बजाय अगर आप सभी परिवर्तनों को सुनना चाहते हैं, तो स्पष्ट रूप से null पास करें।

Comments

Post a Comment

Popular posts from this blog

php - PDO bindParam() fatal error -

-
I am trying to learn PDO, now I have written this small code, but it gives me a serious error: Fatal error: Call a member function at a non-object dot () ... $ con = new mysqli ("127.0.0.1", "root", "", "csvdangercheck"); $ Query = $ con- & gt; ("Id,` var1`, `var2`) values ​​(" id,: var1,: var2) ";); $ query- & gt; bypass pattern (': id', $ id); $ query- & gt; BindParam (': var1', $ VAL1); $ Query- & gt; bindParam (': var2', $ val2); $ Query-> Executed (); I Trying to use print_r ($ con-> errorInfo ()) but Fatal error: Undefined method mysqli :: errorInfo ( ) ... can someone tell me what am I missing? Flaffeh said, you have PDO Missing Mysqy, try it: $ con = new PDO ('mysql: host = 127.0.0.1; dbname = csvdangercheck', 'root', '');
Read more

php - How can I cram 6+31 numeric characters into 22 alphanumeric characters? -

-
I have a 6 digit number and a 31-digit number (such as "234536" and "201103231043330478311223582826") that I The API needs to be crawled in the same 22-character alphanumeric field that uses PHP. I tried to convert each one to 32 (using custom code could not handle the base_convert () large number) and to connect with a single-character delimiter, but It only gives me 26 characters This is a restore API, so the letters should be URI-protected. I would like to do a database table cross with two references without reference to another reference value, if possible, any suggestions? Instead use a radix of 62. This will give you 22 characters for the top, 3.35 for the pre and 17.3 for the next. & gt; & Gt; & Gt; Math.log (10 ** 6) /math.log (62) 3.3474826039165504 & gt; & Gt; & Gt; Math.log (10 ** 31) /math.log (62) 17.295326786902177
Read more

logging - How can I log both the Request.InputStream and Response.OutputStream traffic in my ASP.NET MVC3 Application for specific Actions? -

-
For a specific set of tasks, I need to log in to the incoming request inputstream as well as outgoing response. is. I am using an ActionFilterAttribute for this and overriding the OnActionExecuted and OnResultExecuted methods. So I'm starting with this idea ... Public category ActionLoggerAttribute: ActionFilterArrbit {Public Override Zero On-Offed Execution (ActionActioned Contact Filter Filter) {base.OnActionAxecuted (FilterContext); HttpRequestBase request = filterContext.HttpContext.Request; // TODO: Log the request. InputStream} Public Override Zero OnResultExecuted (ResultExecutedContext FilterContext) {base.OnResultExecuted (filterContext); HTTPRPSPointBase Response = FilterContacts Hpptex response; // TODO: Log on Response.OutputStream}} Ideally I'll hook it up with enterprise library logging because I'm already using it for error logging. Am I reaching the input and output stream at the right time? Can I easily use the Enterprise Library to log i...
Read more